Patek Philippe Aquanaut 5060
Patek Philipe launched the Aquanaut range in 1997 as a lower-priced alternative to the existing Nautilus range. A true sports watch, the Aquanaut features a rugged three-part case and screw-down crown for 120 meter water resistance, the most of any watch with a sapphire caseback at that time.
The original Ref. 5060 was released in 1997 a limited edition of 1,000 pieces. It featured a 36 mm case with a solid caseback. Inside was Patek Philippe's Cal. 330 S C central rotor automatic movement.
The Aquanaut proved very successful, so Patek Philippe put the Aquanaut into full production. Two sizes were available: The 36 mm Ref. 5066 and the "Jumbo" Ref. 5065, with a 38 mm case. Ref. 5066 differed from the Limited Edition in that it had a sapphire display caseback.